| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.42/5 | 4.39/5 |
| Vol 2 | 2.11/5 | 3.30/5 |
| Vol 3 | 2.28/5 | 4.47/5 |
| Vol 4 | 2.54/5 | 4.44/5 |
| Vol 5 | 2.52/5 | 4.53/5 |
| Vol 6 | 2.55/5 | 4.57/5 |
| Vol 7 | 2.38/5 | 4.39/5 |
| Vol 8 | 2.20/5 | 4.30/5 |
| Vol 9 | 2.45/5 | 4.49/5 |
| Vol 10 | 2.59/5 | 4.33/5 |
| Vol 11 | 2.35/5 | 4.33/5 |
| Vol 12 | 2.71/5 | 4.65/5 |
| Vol 13 | 2.73/5 | 4.47/5 |
| Vol 14 | 2.68/5 | 4.62/5 |
| Vol 15 | 2.86/5 | 4.62/5 |
| Vol 16 | 2.94/5 | 4.68/5 |
| Vol 17 | 2.76/5 | 4.65/5 |
| Overall | 2.51/5 | 4.68/5 |